Answer:
11, 17, and 28.
Step-by-step explanation:

Lowest number is 
Median is 
Highest number is 

Answer:
99 square feet
Step-by-step explanation:
Because 8 times 9=72+27=99
Answer:
36 and 6. 2.
Step-by-step explanation:
Answer:
x = -5
Step-by-step explanation:
Note that x does not change. Hence, this line is a vertical one, and its slope is undefined. The line is defined by the equation x = -5.